刚毛橐吾 gang mao tuo wu

Senecio achyrotrichus Diels, Bot. Jahrb. Syst. 36(Beibl. 82): 105. 1905; Cacalia achyrotricha (Diels) Y. Ling; Senecillis achyrotricha (Diels) Kitamura.

Stem erect, 25-64 cm tall, to 8 mm in diam. at base, densely shortly brown pilose. Basal leaves petiolate; petiole to 27 cm, shortly brown pilose, base narrowly sheathed; sheath ca. 12 cm; leaf blade reniform, 3-10 × 7-22.5 cm, glabrous or abaxially pubescent along veins, palmately veined, margin irregularly coarsely dentate and brown ciliate, apex rounded; teeth triangular, 2-6 mm; sinus ca. 1/3 as long as leaf blade, broad, basal lobes suborbicular. Middle stem leaves smaller, shortly petiolate; sheath enlarged, brown pubescent; leaf blade reniform, ca. 6.5 × 12 cm, margin coarsely triangularly dentate, apex rounded or retuse; teeth to 7 mm. Compound corymbs spreading, to 15 cm, branched; leaflike and supplementary bracts subulate; peduncles ca. 2 cm, densely yellow pubescent. Capitula numerous. Involucre narrowly campanulate or cylindric, 5-6 mm in diam., outside yellowish brown pubescent; phyllaries 8-10, in 2 rows, narrowly lanceolate, 9-10 × 1.5-2.5 mm, outside densely shortly yellow pilose, apex acuminate; inner phyllaries membranous at margin. Florets 10-16, yellow, all tubular, 7-9 mm; tube 4.5-5 mm; limb to 2 mm wide. Achenes narrowly cylindric, 7-9 mm. Pappus white or lower yellow, as long as tube of tubular corolla. Fl. and fr. Jun-Aug.

● Grassy slopes, forest margins; 3300-3700 m. S Shaanxi (Qin Ling).